Ply Gem 6.625-in x 6.625-in Gray/Woodgrain Vinyl Universal Mounting Block

Includes 1 traditional lap square surface mounting block. Simple one-piece design for easy installation of accessories over double 4-in or 5-in lap siding. Includes 1-in dia. and a 2-3/8-in w x 3-3/4-in h knock out.